Using some l92 heads on my 6.0 build gonna be using a cam somewhere around 590-600 lift and i am looking for valve springs.I am using stock l92 valves this is a very mild build.

 

Patriot Dual Gold springs are what I use on all my builds. Inexpensive, strong, and reliable. I'd reccomend some comp beehives, but those big L92 valves are heavy.

 

PAC 1521's

 

im using texas-speeds prc .675 springs with no issues

 

i ran prc dual springs with my 243s with no issue and going with prc dual springs for my l92s

 

I have the patriot extreme duals now, they have been fine, but only have about 40 passes, and maybe 200 street miles on them. I will be stepping up to PAC duals with a new more aggressive cam in the spring.

 

I've run the Patriot Golds and loved them although they did fade out after a couple of seasons and maybe 10k miles street/strip 7K RPM at least once or thrice per day

Im running the PAC 1518's now on a mild 6.2 set up but from everything Ive read the 1521's are an excellent spring